期刊名称：International Journal of Computer Technology and Applications
电子版ISSN：2229-6093
出版年度：2011
卷号：2
期号：4
页码：807-812
出版社：Technopark Publications
摘要：Digital image processing is the most common and versatile method of processing image data and has got wide applications. With the invention of many display devices of varying resolutions (Mobile display, PDA etc.), it became essential to resize the images to suit the target devices on which it is displayed. It include content unaware methods (Cropping, Scaling, Warping etc.) and also content aware methods like Seam carving which has gained popularity lately. Seam Carving uses a simple image operator called seam. Seam is an optimal 8-connected path of pixels on a single image from top to bottom, or left to right, where optimality is defined by an image energy function. By repeatedly carving out or inserting seams we can change the aspect ratio of an image or retarget the image to a new size. This approach claims that the seams must be continuous and monotonical. Continuous seams some times include pixels on the object of interest thereby resizing it (or even distorting it). To overcome the problem an efficient new approach using PSC (piecewise seam carving) is proposed which divides the image into several segments and seam carves each of it individually. It preserves objects of interest by avoiding carving in the segments containing them. This method allows the user to interactively define number of seams in each segment thereby resizing each segment to different ratio. The proposed method works fine even in images where the objects of interest are scattered over the image
关键词：PSC-Piecewise Seam Carving; ROI – Region Of Interest.
